نتایج جستجو برای: sand mineralogy
تعداد نتایج: 32463 فیلتر نتایج به سال:
Acid and saline seeps are an increasing problem in most parts of the World and Australia as well. They are areas of bare soil or reduced crop production. Recent laboratory, field, and remote sensing studies have explored the use of visible to short – wave infrared (VIS- SWIR; 400-2500 nm) reflectance data for characterizing the mineralogy of mine wastes, surface mineralogy of acid-saline affect...
Heat flow controls the design and operation of a wide range engineered geosystems. This study uses transient thermal probe measurements to determine evolution conductivity air-dry water-saturated sand–silt mixtures as function effective stress. Results confirm that soils varies with state stress, dry mass density, mineralogy, pore fluid properties highlight effect contact resistance on granular...
Background: Sand production is an important factor affecting reservoir exploitation. Excessive sand production affects the oil well life, causes the damage to the oil recovery device and brings serious hidden danger in the process of safety production. Objective: This paper presents a sand content computation model for the crude oil, which uses the power of sand production and Parseval theorem,...
SSSAJ: Volume 75: Number 5 • September–October 2011 Soil Sci. Soc. Am. J. 75:1958–1972 Posted online 8 Aug. 2011 doi:10.2136/sssaj2011.0049 Received 8 Feb. 2011. *Corresponding author ([email protected]) © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, elec...
SPECTROSCOPY OF EXPERIMENTALLY SHOCK METAMORPHOSED QUARTZITE. Arnold Gucsik, Christian Koeberl, Franz Brandstätter, Eugen Libowitzky and Wolf Uwe Reimold, Institute of Geochemistry, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria. ([email protected]) Institute of Geochemistry, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria. ([email protected]) Depa...
Microbial sulfate reduction possesses a potential risk for the long-term safety of spent nuclear fuel repositories because under expected repository conditions sulfide is main corroding agent copper and copper-coated steel canisters foreseen in Scandinavian disposal concepts. It thus essential to understand quantify processes factors impacting microbial production within around compacted benton...
SSSAJ: Volume 75: Number 5 • September–October 2011 Soil Sci. Soc. Am. J. 75:1958–1972 Posted online 8 Aug. 2011 doi:10.2136/sssaj2011.0049 Received 8 Feb. 2011. *Corresponding author ([email protected]) © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, elec...
Saltation is an important geological process and the primary source of atmospheric mineral dust aerosols. Unfortunately, no studies to date have been able to precisely reproduce the saltation process because of the simplified theoretical models used. For example, sand particles in most of the existing wind sand movement models are considered to be spherical, the effects of the sand shape on the...
Moon Mineralogy Mapper/Chandrayaan-1. Moon Mineralogy Mapper (M) is one of eleven instruments selected to fly onboard India’s Chandrayaan-1 spacecraft in 2008. M, selected as a NASA Discovery Mission of Opportunity in May, 2004, is a high spatial and spectral resolution spectrometer that will help scientists better understand the compositional variation of the Moon’s surface. Ms overall science...
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